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Finding the Fourth Proportional to 518,326.26, 777,714.03 and 252,317.94

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Solution

The fourth proportional to 518,326.26, 777,714.03 and 252,317.94 is: 378,586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,326.26 : 777,714.03 = 252,317.94 : x
  2. Step 2: Convert to fraction form
    518,326.26/777,714.03 = 252,317.94/x
  3. Step 3: Cross multiply
    518,326.26x = 777,714.03 × 252,317.94
  4. Step 4: Simplify right side
    518,326.26x = 196,231,201,958.70
  5. Step 5: Solve for x
    x = 196,231,201,958.70/518,326.26
  6. Step 6: Final answer
    x = 378,586.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.